公开(公告)号：EP0623008A1

公开(公告)日：1994-11-09

申请号：EP92923190.0

申请日：1992-10-27

Applicant: VALLEYLAB, INC.

Inventor： KLICEK, Michael, Steve

IPC: A61B18

CPC classification number: A61B18/1206 ,  A61B18/1402 ,  A61B18/1487 ,  A61B2018/00666 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00738 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00875 ,  A61B2018/00892

Abstract: Système de commande électrochirurgical (10) s'utilisant pour un trocart (11) et possédant un trocart (11) pourvu d'une cannule (12) dans laquelle est introduit un stylet (13) de façon coaxiale. Le stylet (13) est mobile par rapport à la cannule (12) le long d'un axe commun. Le trocart (11) est conçu pour s'introduire dans un sens se déplaçant généralement le long de l'axe à travers le tissu dans une opération de ponction avec son stylet (13). Une extrémité distale (15) et une extrémité proximale (16) de la cannule allongée (12) permettent à ladite extrémité distale (15) de pénétrer dans le tissu tandis que l'extrémité proximale (16) reste à l'extérieur. Une pointe (17) située à l'extrémité du stylet (13), à proximité de l'extrémité distale (15) de la cannule (12), s'étend au-delà de celle-ci, de manière à percer le tissu. Le stylet (13) est alimenté en énergie (18) depuis la pointe (17) vers son extrémité opposée (19) et se déplace réciproquement par rapport à la cannule (12), de façon que ladite pointe (17) se trouve soit en position étendue, soit en position totalement retirée à l'intérieur de la cannule (12). Un générateur électrochirurgical (20) alimente l'extrémité opposée (19) du stylet (13) en énergie et un dispositif électrochirurgical opérationnel constitue une partie de la pointe (17) et est branché sur l'alimentation en énergie (18). Un circuit d'échantillonnage (21) est branché sur le dispositif électrochirurgical opérationnel et réagit à des modifications de l'énergie traversant le dispositif d'alimentation en énergie (18) en tant que fonction de la perforation du tissu effectuée par ledit dispositif électrochirurgical. Le circuit d'échantillonnage (21) émet un signal correspondant à l'alimentation en énergie et un circuit de mesure (22) analyse ledit signal, de façon à isoler instantanément un signal spécifique indiquant une modification importante de l'énergie, quand la pointe (17) ne se trouve pas à l'intérieur du tissu. Un comparateur (23) possède une quantité d'énergie à seuil réglable

Abstract translation: 一种与套管针（11）一起使用并具有套管针（11）的电外科控制系统（10），套管针（11）设有套管（12），管芯（13）同轴地引入套管（12）中。 探针（13）可沿公共轴线相对于套管（12）移动。 套管针（11）适于在通过穿刺操作时利用其探针（13）以大致沿着轴线穿过组织的方向引入。 细长套管（12）的远端（15）和近端（16）允许所述远端（15）在近端（16）保持在外部时穿透组织。 探针（13）的靠近套管（12）的远端（15）的末端处的尖端（17）延伸超过其以刺穿组织。 。 探针（13）从尖端（17）被激励（18）到其相对端（19）并且相对于套管（12）往复运动，使得所述尖端（17）是 或者处于套管（12）内的完全缩回位置。 电外科发生器（20）以能量激励探针（13）的相对端（19），并且操作性电外科装置形成尖端（17）的一部分并连接到电源（18）。 采样电路（21）连接到操作的电外科装置，并根据由所述电外科装置执行的组织穿孔来响应通过能量供应装置（18）的能量的变化。 采样电路（21）发送对应于电源的信号，并且测量电路（22）分析信号，以便瞬时隔离指示能量显着变化的特定信号， （17）不在织物内部。 比较器（23）具有可调节的阈值能量

公开(公告)号：EP0447121A3

公开(公告)日：1992-04-22

申请号：EP91301892.5

申请日：1991-03-07

Applicant: VALLEYLAB, INC.

Inventor： Delahuerga, Louis ,  Stoddard, Robert Bryant ,  Klicek, Michael Steve

IPC: A61B17/39

CPC classification number: A61B18/042 ,  A61B2017/00296 ,  A61B2018/00017

Abstract: A device for enhancing the safety and efficiency of a hand-operated electrosurgical pencil having an electrode 2 with a distal end 2′ defining a tip for cutting or coagulating biological tissue, which device 10 comprises a nose piece adapted to be mounted about said electrode and containing conduit means defining converging pathways for streams of gas which impinge obliquely on said electrode at or near the tip thereof, and electrosurgical apparatus incorporating said device.

公开(公告)号：EP0171967A3

公开(公告)日：1987-11-04

申请号：EP85305399

申请日：1985-07-29

Applicant: VALLEYLAB, INC.

Inventor： Grover, Thomas P.

IPC: A61B17/39

CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B18/1233 ,  A61B18/16 ,  A61B2018/0066 ,  A61B2018/00934

Abstract: An electrosurgical generator (10) comprises a source of electrosurgical current and output electrode circuitry (12) having an active electrode (22) for applying the electrosurgical current to a patient (26) and a return electrode (24) for returning the current to the source (18), and isolating circuitry for electrically isolating signal processing circuitry connected between the output electrode circuitry (12) and a reference potential such as ground (36) where the isolating circuitry includes an optical power supply (46) for optically powering the signal processing circuit: and an optical output coupler for optically coupling output signals for the signal processing circuit to the electrosurgical current source. The signal processing circuitry may include a handpiece switching circuit and / or a return electrode monitor circuit. Improvements in the foregoing circuits are elso disclosed.

Abstract translation: 电外科发生器（10）包括电外科电流源和输出电极电路（12），其具有用于将电外科电流施加到患者（26）的有源电极（22）和用于将电流返回到所述电极的返回电极（24） 源极（18）和隔离电路，用于电连接在输出电极电路（12）和诸如地（36）的参考电位之间的信号处理电路，其中隔离电路包括光电源（46），用于向信号 处理电路; 以及用于将信号处理电路的输出信号光耦合到电外科电流源的光输出耦合器。 信号处理电路可以包括手持式开关电路和/或返回电极监视电路。 还公开了上述电路的改进。

公开(公告)号：EP0186369A1

公开(公告)日：1986-07-02

申请号：EP85308953.0

申请日：1985-12-10

Applicant: VALLEYLAB, INC.

Inventor： Newton, David W. ,  Paterson, William G.

IPC: A61B17/39

CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B2018/0066 ,  A61B2018/00934 ,  A61B2018/00958

Abstract: An electrosurgical generating system including an electrosurgical generator; a handpiece (12) including an active electrode (14) connected to the generator for applying electrosurgical current from the generator to a patient; and an initialising device or circuit for making an initial determination as to whether the handpiece includes power changing switches (32, 34) for changing the level of the output power delivered from the generator to the patient. Assuming the handpiece does include such switches, circuitry is also disclosed for limiting the amount the power can be increased or decreased from the handpiece. Also circuitry is disclosed for effecting the power increase or decrease in incremental steps.

Abstract translation: 一种电外科生成系统包括电外科发生器; 手持件（12）包括在连接到所述发生器，用于从所述发生器到患者施加电外科电流活性电极（14）; 并初始化装置或电路，用于使在初始判断是否手持件包括用于改变从所述发电机输送给患者的输出功率的电平功率转换开关（32，34）。 假设手件确实包括寻求开关，电路是这样游离缺失盘用于限制的功率可以被增大或从手持件减少的量。 所以电路游离缺失是用于实现以递增步长功率增加或减少光盘。

公开(公告)号：CA2309724C

公开(公告)日：2010-10-12

申请号：CA2309724

申请日：1998-11-11

Applicant: VALLEYLAB INC

Inventor： BUYSSE STEVEN PAUL ,  SCHMALTZ DALE FRANCIS ,  LUZZI ROBERT ,  OLSON KIRK BRYAN ,  LAWES KATE RYLAND ,  TRIMBERGER DANIEL LEE II ,  MITCHELL MATHEW ERLE ,  KENNEDY JENIFER SERAFIN

IPC: A61B17/28 ,  A61B18/14 ,  A61B18/04 ,  A61B18/12

Abstract: A bipolar electro-surgical instrument (10) has opposable seal surfaces (18, 19) on its jaws (16, 17) for grasping, sealing vessels, and vascular tissue. Inner, and outer instrument members (11, 12) allow arcuate motion of the seal surfaces. An open lock box (13) provides a pivot with a lateral support to maintain alignment of the lateral surfaces. Ratchets (25, 26) on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion (14, 15) on each member is tuned to provide an appropriate spring force to hold the surfaces together. During surgery the instrument can be used to grasp, clamp vascular tissue, and apply bipolar electro-surgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

公开(公告)号：CA2232018C

公开(公告)日：2002-02-12

申请号：CA2232018

申请日：1998-03-11

Applicant: VALLEYLAB INC

Inventor： GINES DAVID LEE

IPC: A61B18/12 ,  H03L5/02 ,  A61B17/36

Abstract: An electrosurgical generator has an output power control system (10) that causes the impedance of tissue (14) to rise and fall in a cyclic pattern until the tiss ue (14) is desiccated. The advantage of the power control system (10) is that thermal spread and charri ng are reduced. In addition, the power control system (10) offers improved performance for electrosurgical vessel sealing and tissue welding. The output power is applied cyclically by a control syst em with tissue impedance feedback. The impedance of the tissue follows the cyclic pattern of the outp ut power several times, depending on the state of the tissue (14), until the tissue becomes fully desiccated. High power is applied to cause the tissue (14) to reach a high impedance, and then the pow er is reduced to allow the impedance to fall. Thermal energy is allowed to dissipate during the low pow er cycle. The control system is adaptive to tissue in the sense that output power is modulated in response to the impedance of the tissue.

公开(公告)号：AU714068B2

公开(公告)日：1999-12-16

申请号：AU5700896

申请日：1996-06-03

Applicant: VALLEYLAB INC

Inventor： BEK ROBIN B

IPC: A61B18/12 ,  A61B17/39

Abstract: An electrosurgical generator is disclosed that includes an exit spark control system. Exit sparking occurs when energy arcs to the patient as the active electrode is withdrawn from the patient. A basis for controlling the exit spark is to automatically change the frequency at which the final amplifier is driven whenever the conditions for an exit spark are detected. The change in frequency acts to lower the gain and efficiency in the final amplifier and dissipate energy as heat. The exit spark control system includes a frequency adjustable waveform generator and a logic capability for determining the conditions when exit sparking is likely to occur. Sensors and an algorithm in a microcontroller are preferably required to detect the conditions preceding exit sparking occurrence. It is further preferred that, the algorithm also control the sequencing of events: first stopping the electrosurgical output to prevent an arc from initiating and then changing the driving frequency appropriately to dissipate excess stored energy. The output waveform may be stopped for only a short time or the surgeon will detect drag while cutting through tissue.

公开(公告)号：DE69415157T2

公开(公告)日：1999-05-06

申请号：DE69415157

申请日：1994-04-06

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL ,  PATERSON WILLIAM

IPC: A61B18/12 ,  A61B18/14 ,  A61B17/39

Abstract: A circuit, for monitoring and controlling parameters of an electrosurgical unit, ESU, relative to load and the RF energy, has a load responsive output sensing circuit that measures the ESU load. A signal modifier, attached to the sensing circuit enhances the signals measured and transmits them to a buffer. An analog to digital converter, A/D, digitize the signals and samples wave pulse train at about eight million samples per second. A data memory stores the digitized signals. A RF drive clock connects to the ESU output; a sample clock uses phase shifting to interrogate the input signals to a processor, DSP, at a greater sampling rate of frequency than without. The DSP receives the stored signals from the data memory and processes them while monitoring and calculating ESU parameters measured, i.e. voltage, current, power, load impedance, leakage current, peak to peak voltage, peak to peak current, spectral content and/or crest factor of the RF wave pulse train energy to use as controlling feedback to the either a high voltage power supply in the ESU, regulating the RF drive pulses or both. A method monitors and controls the ESU relative to load has the steps of collecting parameters with the ESU output sensing circuit responsive to loads; enhancing signals with the signal modifier; transmitting signals to the buffer; converting signals with the A/D converter; storing signals in the data memory; receiving signals in the DSP, and processing, monitoring and controlling signals by repeatedly measuring ESU output parameters.

公开(公告)号：AU703586B2

公开(公告)日：1999-03-25

申请号：AU3352695

申请日：1995-09-11

Applicant: VALLEYLAB INC

Inventor： PAGE JON P ,  STODDARD ROBERT B

IPC: F16L37/24 ,  A61B17/00 ,  A61B17/32 ,  F16L37/252 ,  A61M39/16 ,  A61M39/10

Abstract: A connection of first and second members wherein each has a body and a connecting end with an inner surface so the second connecting end has an outer surface shaped for telescoping into the inner surface of the first connecting end. A shoulder is located on the second member and a groove is in the outer surface of the second connecting end. A raised nub on the inner surface of the first connecting end is radially inward to engage the groove. An elastomeric gasket is positioned to bear against the shoulder and be compressed between the first and second bodies. An engaging trough in the groove holds the first connecting end against the shoulder with the nub against the groove by the compression force of the gasket. An indexing trough in the groove positioned along the groove beyond the engaging trough allows the nub to follow therethrough and slightly compress the gasket thus giving the user a tactile indication that it has been rotated beyond the engaging trough. A method for fluid tight attachment of members of a medical device has steps including providing the connection of the first and second members with ends by telescoping the ends. Locating a groove for operating the groove as a cam and locating a raised nub of material on the inner surface of the first connecting end for positioning the raised nub to engage the groove for operating the raised nub as a follower of the cam are steps. Compressing a gasket seal between the first connecting end and the shoulder while making the gasket seal from an elastomeric material is a step. Positioning an engaging trough in the groove to hold the first and second connecting ends against each other is a step. Positioning an indexing trough in the groove so when the nub is rotatably forced past the engaging trough it will further compress the first end against the gasket is a step.

公开(公告)号：CA2130554C

公开(公告)日：1999-03-02

申请号：CA2130554

申请日：1993-01-11

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S

IPC: A61B18/14 ,  A61B17/39

Abstract: An electrosurgical bipolar cutting apparatus comprising a handpiece (1) to which is connected a first active electrode and a second return electrode having exposed distal ends (6, 7) which define a tip for electrosurgically cutting tissue at an operational site on a patient, which tip is structured so that both distal ends simultaneously contact said tissue and wherein the active electrode has a higher tissue to electrode impedance than the return electrode.